package simpleftp.server;

import java.net.ServerSocket;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;

/**
 * Simple serveur TCP creant des thread pour gerer chaque connexion client.
 * 
 * @author lom
 */
public class FTPServerMain {

	/**
	 * Port d'ecoute.
	 */
	public static final int PORT = 7802;
	/**
	 * Socket serveur d'accueil.
	 */
	private static ServerSocket socketaccueil;

	public static void main(String argv[]) throws Exception 
	{
		// TODO MAKE IT MULTITHREAD (about 4 lines)
		try {
			socketaccueil = new ServerSocket(PORT);
			System.out.println("Server up and running.");
			FTPServer.setDebug(true);
			while (true) {
				// TODO Modify for multithreading
				final int numberOfCores = Runtime.getRuntime().availableProcessors();
			    final double blockingCoefficient = 0.9;
			    final int poolSize = (int)(numberOfCores / (1 - blockingCoefficient));
			    //final int poolSize=2;
			    final ExecutorService executorPool = Executors.newFixedThreadPool(poolSize); 
			    FTPServer server = new FTPServer(socketaccueil.accept());
			    executorPool.submit(server);

				
			}
		} finally {
			if (socketaccueil != null) {
				socketaccueil.close();
			}
		}
	}
}
